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How to import data from an Excel spreadsheet

Hello All, I visualized a map of Kazakhstan. I have the data in an Excel file.Could you please help me to Import the data from Excel and visualize that data into a graph(map) by region?Which functions do I need to use?Thank you in advance.

You can download the shapefiles from the Global Administrative Areas.If you expand the Zip File you'll find that the regions can be found at level 1. So we can import both th shapefile and database into Mathematica.

hello Diego, thank you so much for your reply. it is so useful and interesting. i wanted to use my polygons which is in my previous attached file. is it possible to use it? and could you please explain how you used your codes?